‘This team has to be improved one chunk at a time and its defense was leaking oil by the gusher last season. So Nix and Gailey wisely aimed at repairing that side of the line of scrimmage first. There may be as many as four new starting linebackers by opening day, Sept. 11. The secondary should be buttressed by the return to health of safety Jairus Byrd and the addition of rookies Aaron Williams and Da’Norris Searcy.’